查询词典 antenna

The Yagi is inherently a balanced antenna, but it can be fed with coaxial cable and a device called a balun at the point where the feed line joins the driven element.

Yagi 固有地是平衡的天线，但它可能被哺养以同轴电缆和设备称一台平衡-不平衡变压器在饲料线段连接被驾驶的元素的点。

The polycrystalline or amorphic diamond thin films may have three ways of field emission:"antenna effect", the emission site of quasi-n-type and low work function, the field emission of graphite particles.

多晶或非晶金刚石薄膜可能存在三种场发射方式：&天线效应&，准n型低功函数发射点和石墨微粒场发射。

The results indicated that there were six types of sensilla, namely, finger-like sensilla, platcodeum sensilla, trichoid sensilla, ampullaceous sensilla and chaetic sensilla on the antenna of two wasps. The type, number, and distribution patterns of the antennal sensilla were similar in the two species, but the differences between two sexes were significant.

结果发现，在两种寄生蜂的触角上着生着6种感器，分别为指形感器、板状感器、毛形感器、坛形感器、刺形感器、蒲姆氏鬃；两种桑天牛卵寄生蜂触角感器的种类、数量及分布模式在种间没有明显差异，但在种内雌雄个体间差异较为显著。

Furthermore, a pseudo-antenna augmentation scheme is employed such that sphere decoding can be applied where the number of receive antennas is less than that of transmit antennal; thus enhance the applicability of this powerful algorithm.

此外，我们利用一种增加虚拟天线的架构使得球体演算法能被应用在当传送天线个数大於接收天线个数的情况；这个方法增加了球体解码演算法更大的可用性，而且不致改变它原有的低运算量及高效能的特性。

On the basis of ESTs, three antenna specific protein—Ac-ASP1, Ac-ASP2 and Ac-ASP3, were cloned and identified through the transcriptional profiles and immunocytochemical localization in antennal sensilla. All above will produce an important basis to the exquisite olfaction and action of discrimination against others and resistance to mites of A.

在此基础上，着重通过对中蜂主要的触角特异蛋白——Ac-ASP1，Ac-ASP2和Ac-ASP3进行基因克隆，并通过其在触角中的转录表达谱和在触角不同感器内的亚细胞定位，以期对上述分子进行鉴定，最终对揭示中蜂灵敏的嗅觉以及独特的排异和抗螨能力奠定重要的基础。

A vehicle antitheft system includes an immobilizer unit and a portable unit. Each of the units includes an antenna, a communication part, a data processor, and storages.

一种车辆防盗系统，包括固定单元和移动单元，各单元具有天线、通信部分、数据处理器和存储单元。

In APAR simulator system design scheme a new design is used to generate all the sum, azimuth difference and elevation difference channel target echo signal by passing only one channel signal of target through antenna gain multiplication circuit, which simplified the simulator design.

提出了在很短的一帧时间里用匀加速直线运动拟和目标实际运动轨迹的方法，简化了目标回波模拟系统并实现了目标数据的实时模拟。

The quantity computed is the expected clutter power at the output of any specified range gate by the method of integrating reflected energy between constant Doppler loci in range-gate circles with a model of sum and difference antenna gain pattern for APAR. Base on the analyzing of APAR terrain clutter spectrum, Rayleigh, Correlated Log-Normal and Weibull distribution terrain clutter of APAR general pulse signal was simulated with the method of zero memory nolinearity transform.④The Doppler frequency of target echo is simulated on video frequency in this dissertation.

该软件采用了用C语言建立框架结构，而在程序高重复部分和有运算速度要求的地方，用汇编语言编写具有高并行能力程序的方法，不仅满足了系统高运算速度和实时性的要求，也使得软件系统结构模块化，代码具有良好的维护性和重用性；③对机载相控阵雷达HPRF、MPRF的和、差通道地面杂波功率谱进行了较为全面的研究，通过建立由四个子波束构成的机载相控阵雷达杂波和差波束天线方向图数学模型，选取体现高度线杂波的修正的地面后向散射模型，以载机平飞为例，采用沿距离门——等多普勒线区域积分的方法，得到了杂波功率谱，并利用零记忆非线性变换法实现了机载相控阵雷达常规脉冲情况下瑞利分布、对数正态分布和韦布尔分布地面杂波的模拟；④提出了采用在视频上对目标回波的多普勒频率进行模拟的方法。

The high precision and fast optimiza -tion formulae for the phase center of Circular apertured horn are Presented, and the synthes is methods for the reflector antenna are discussed.

提出了园口径喇叭相位中心的快速寻求方法，并对双反射面天线的综合方法进行了研究和讨论，首次提出了反射面天线系统中馈源相位中心的广义表达式，进而提出了反射面天线系统的吻合调整与最佳匹配方法。

This thesis responds that it is impossible, and then, proposes an assumer mixing multi- antenna GPS, camera, laser radar and sequence images.

本文在最理想的情况下（相机固定、目标沿直线做匀速运动），得出了仅仅利用单相机的序列影像不能确定目标空间位置的结论。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。